Spooler-guide and yarn-tensioner.



W. HARROP.

SPOOLER GUIDE AND'YARN TENSIONER. APPLICATION FILED MAR. 14. 1918.

avweutoz Patented Sept. 17, 1918.

1 which;

nection to provide a tensioning companying drawings, wherein 1 I Figure 1 is aside GIGVittlOn of: my im- TE s TES

. S POOLER-GUIDE Ann xARn rnNsIoNER.

To all whom it may] concern 7 Be it known that I, WmLLAMHAnnoP, a citizen of the United States, residing at New Bedford, the oounty of Bristol and State of Massachusetts,-have invented certain new and useful-Improvements in Spooler Guides and Yarn-Tensioners, of which. the following is a specification, reference being had to the accompanying drawings' This; invention relates to spooling or winding machines, andparticularlyfto the means whereby'the yarn is guided and tensioned as it passes from the cop or bobbin tothe spool on which the yarn is being wound.

The general object of the invention is to provide improved means for guiding or tensioning the yarn in its passage.

A further object is to provide means for properly tensioning the yarn as it comes from the bobbin or cop, such means being so formed that the tension may be regulated or controlled.

A still further object'is to provide means whereby the tension on' 'the yarn may, be 25 size of the yarnv package of wrapping of yarn on the spool increases.or-decreases,.and to providea means whereby the tension'of the yarn may beregulated or controlled so automatically increasedor decreasedas the as tosuit" the size and build of the yarn P g nd thespeed at which the-yarn -is=-- beingwound. r v

Still another object is to provide an automatic tensioning device which will cause more tension to'be placed on the yarn when is smalland winding slowly and wi place :le'ss' tension on the yarn when the package increases in diameter and is winding more rapidly, and in this condevice which is attachable tothe ordinary slub catcher and yarn guide" with which machines of this character are ordinarily equipped. A

" Other objects willappear in the course of the following description. 1

My inventionis illustrated in the ac- Application filed March 14,

guide and alliedtensioning weight; 2

tion illustrated in Fig. 2;

termed is 'the tensioning'weight 25.; is of metaland has a slightly rounded under i Specilieation of Letters Patent. Patented Sept. 17, 1918.

1918. Serial n. 222,354.

"proved yarn tensioning mechanism, the rails 10 being in section; I

Fig. 2 is a front elevation of the yarn Fig.3 isa side elevation of the construc- Fig. 4 is a perspectlve view of the tensioningweight. a 7

Referring to these figures, 10 designates is disposed adjacent to the spools 11 upon which theyarn is to be wound, this guide rod being operatively connected to the lifting rods (not shown) of any usual orv suitab e character. Mounted upon the rod 10 and disposed in front of each of the spools 11 is the usual thread guide and slub catcher which'comprises clamping members 12 and 13, the clampingmember'12 being rearwardly extended as at 14' and carrying a alongitudinally extending guide rod-which lower fixed longitudinally extending aw 15, the upper edge of which is horizontal and flat.v The rearward extension 14 is provided' with ears 16 between which is pivoted the shank 17 of a jaw 18. coacting'with the jaw 15, the yarn-or thread passing between I these jaws 15v and 18;

formed with a tongue 19, which extends out The shank 17 is over the guiderod 10 and urging the shank '17 upward and the jaw 18 into'contiguity with the jaw 15'. is a spring 20, whose ten- 'sion is controlled by a screw 21.

The clamping member. 13" confronts the clamping. member 12. and these clamping members are provided with semi-circular seats for the rod 10 and the clamping member 13'has an upward extension 22 which at its upper end is extended rearward and then downward as at 23, this downwardly extended portion. beingv laterally elongated as at 24." This portion 22 and23 is not, found upon. the yarn guides and slub' catchersordinarily used but is part ofi my invention. a

Coactingwiththe keeper 2 2 as it may be surface26 which restsupon the guide rod This,

60 from Fig'."3 that the under face of this werght, ithat is the face confronting the rod 10, is slightly rounded so-as to exert no more intersects a downwardly extending shoulder 30. This tensioning device is inserted with its body beneath the keeper'2'2 and withthe lug 27 hearing against the confronting face of the keeper and'the lug 28 disposed be-V neatli the tongue 19. (The intersectionof crum bearing upon the" adjacent cornerxof speed will increase.

the surface 30 and the surface 29 forms the :fulcrum oft-his tensioningf weight, this fulthe clamping, members 12 and 13.,v It will be obvious'now that becauseof the beveled face 29, the body .25 maylift within certain limits and it is obvious that the power required to tilt the body will vary as the power is applied nearer to orfarther from the fulcrum point and, therefore, that the weight or downward pressure of this body- 25,-.upon the rod 10 will vary as the point of application of the weight is nearer to or farther from the fulcrum point.

1 The bobbin or cop from which the yarn is to be withdrawn is mounted below'the rod 10 in any suita'ble'or usual manner.

In the practical use of this invention, the yarn a is carried from the'cop (not shown) over the rod 10 between the rod and the automatic weight lever and thence be tween the jaws '15 and. .1-8 to the spool 11.

Now it will be obvious that as the yarn is wound upon the-spool 11, the diameter of the spool 11 or of the yarn package will gradually increase and hence the surface Under these circumstances, itis desirable that less tension be ap- "plied to the "yarn as it passes through the spool than is applied when the yarn or thread package is relatively small in diamev Ul ter. This automatic regulation of the tension is secured by means of the weight 25 for as the diameter of the yarn package 11 increases, the "yarn a will *be shifted gradu- "ally outward from a :point relatively near to the "fulcrum of the weight to a point "relatlvely dlstant from the fulcrum of the weight. At the point adjacent the fulcrum "the weight eXerts relatively considerable power, that is, bears relatively heavily upon the yarn and 'then' as-the size of the package 11 increases, the yarn will be shifted nearer and nearer to the end of the weightand, as

a consequence, the weight will exert less and less pressure upon the yarn, thus decreasing the tension on the yarn; "It'will be noted than the desired frictional bearing on the yarn.

It will be noted that by means of the weight to rock upon its fulcrum and lift en- 'tirely'free from the lifting rod 10.. This permits the confronting faces of the jaws 1 5 "and 18 and the confronting face's'ofthe rod 210,-and weight25; to be cleaned simultaneously as it is necessary fromtime to time to do. Of course itis understood that means are commonly provided :for limiting the extent to which the jaws 18:and l5 are forced toward each other by the: spring so as to thereby vregulate the space between the jaws in conformity with the work being done. "Having described my invention, whatl claimis: j; 1-

1. In a machine for-spooling yarn a rod over which the yarn passes, and means 'for tensioning the yarn comprising arelatively elongated weightresting upon and extendingpar'allel with the rodiand between which weight and the rod, the yarn passes, the

weight having a fulcrum adjacent one end upon which fulcrum times. i a a 2. Inamachine for spoolingo-yarn, a rotating yarn package, a rod over which the the weight bea-rsat all yarn passes to theyarn package, and means for tensioning the; yarn 'comprisingaa relatively elongated weight resting *upon and extendingparallel :to the: rod and between which rod and weight the yarn passes to the package, the weight' being fulcrume'd adjacent one end, the fulcrum vpoint on said Weight *being approximately opposite the axis of' thecyarn package whereby as the yarn package -increases in "diameter and- -the path of travel of the yarn shifts laterally;

uponfthe rod-and away from the fulcrum, the weight will exert less tension'u'pon' -the yarn. J f.

3.- 111 a machine for spoolingzyarn, a rod over which the yarn -passes,v a: anember 'mounted upon the rod and having 'an *upw ardly extending portion arching over the rod transversely thereto, and a weight loosely disposed between the "rod and the upwardly extending portion and "rocking upon a fu l-1 which the yarn passes, =the m'ovable aw :have

iing a tongue 'extendi'ng outward over the clamping members, the other of said clamp- 10 tongue, and an upwardly extending lug bear- Copies of this patent may be obtained for ing against the face of the overarching portion, said weight being fulcrumed upon the clamping member.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

WILLIAM HARROP.

Witnesses HAROLD I-IARRoP, HAROLD HARRISON.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

